TW504684B - Method for producing optical information-recording medium and optical information-recording medium - Google Patents

Abstract

Disclosed is a method for producing a heat mode type optical information-recording medium (D) having, on a substrate (202), a dye recording layer (204) capable of recording information by being irradiated with a laser beam, the method comprising the step of applying a dye solution for forming the dye recording layer (204) onto the substrate (202) while rotating the substrate (202), wherein a period of time, which ranges from a point of time at which application of the dye solution is started to a point of time at which a valve is fully open, is not less than 0.1 second. In order to satisfy this condition, the opening degree of a first speed controller (462) is not less than 5% and not more than 50%. Accordingly, the opening speed of the valve of a valve apparatus (408) is not less than 5% and not more than 50% with respect to the maximum speed.

Description

504684 A7 ____B7_ V. Description of the invention (1) Background of the invention Field of the invention: (Please read the note on the back? Matters before filling out this page) The present invention relates to a recordable and reproducible product made by using a laser beam and an optical information recording medium Information of the thermal mode type Optical information recording media method. Description of related technology: Generally, optical information recording media (optical discs) that can record information only once using a laser beam include write-once CDs (so-called CD-Rs) and DVD-Rs. One of the advantages of such an optical information recording medium is that a small amount of CE) can be compared to the conventional CD (Compact Disc) manufacturing and quickly come to market at low cost. The demand for such optical information recording media has increased with the recent spread of personal computers. The representative structure of a CD-R type optical information recording medium includes a recording layer composed of an organic dye, a light reflection layer composed of a metal such as gold, and a protective layer made of resin, which are stacked in this order at a thickness of about 1 · 2 mm on a transparent dish-shaped substrate (for example, refer to Japanese Patent Publication No. 6-150371). The structure of the DVD-R optical information recording medium printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs includes two disc-shaped substrates (about 0.6 mm thick) stacked on top of each other and the respective information recording surfaces are set inwardly in a relative manner. This type of optical information recording medium is characterized by being capable of recording a large amount of information. Information is written (recorded) on an optical information recording medium by irradiating a near-infrared laser beam (a laser usually has a wavelength of 780 nm in the case of CD-R or 635 nm in the case of DVD-R). Partially irradiated with the laser recording layer and received light, the local temperature rose to the south. As a result, physical or chemical changes are made. The paper size applies the Chinese National Standard (CNS) A4 specification (2) 0 X 297 mm. 4 504684 V. Description of the invention (2) (such as the generation of pits) and changes in optical characteristics. So, record the information. In other respects, information is also read (reproduced) by illuminating the laser beam, which is usually equal to the wavelength of the recorded laser beam. The information is reproduced by detecting the difference in reflectance between the optical characteristics of the dye recording layer that have changed (based on the recorded portion where the pits are generated) and the unchanged portion (non-recorded portion). For example, the batch number, manufacturer, and disc type indication indicate that the manufacturing history of the disc is printed on the transparent part and is placed on the inner peripheral side of the substrate in some cases. 2 Although this printing form does not affect the recording operation of the disc itself, the appearance quality is very important. As shown in FIG. 27, when a recording layer based on an organic dye is formed on the substrate 1000 of the aforementioned information recording medium, the substrate 100 is rotated while the dye solution 1002 is applied to the substrate 1 through the nozzle 1004. 〇〇 上. Therefore, the dye solution 1002 falling on the substrate 1000 is occasionally scattered in all directions. The transparent portion 1006 provided on the inner peripheral side may cause a flawed appearance. In view of this, M-JB ’s Intellectual Property Bureau employee clothing prints clothing. In view of this, as shown in the two-dot chain line in Figure 27, a method is adopted in which the mask 1008 is installed on the surface portion where no droplets are expected to adhere. However, each time the application treatment is performed, the surface of the mask 1008 is contaminated with droplets of the dye solution 1002. Although dirty > Shell becomes dusty when it dries. For this reason, it may cause new problems caused by such processes. In the aforementioned thermal mode type optical information recording media case, the tracking server of the laser beam is based on a push-pull signal. The push-pull signal is processed so that the signal intensity obtained when the groove is deviated by 0.1 micron is normalized, for example, the reflectance signal intensity of the CD-R case. This procedure is carried out as follows. In other words, the push-pull signal obtained when the track deviation is inaccurate. The paper size applies the Chinese National Standard (CNS) A4 specification (2) 0 X 297 public love.

V. Description of the invention (3 The amplitude is calculated by measurement. The push-pull signal is used for the trajectory server. It is approximately zero when the laser beam is used to perform scanning with the groove regularity. When the laser beam consists of a groove When deflected toward the outer or inner peripheral side, the push-pull signal is at the level corresponding to the amount of deviation. The laser beam is deflected toward the outer or inner peripheral side by the signal polarity. Therefore, 'When monitoring the push-pull signal level change, The laser beam can be used to perform a trajectory server on the groove, and it can also reach the predetermined track position. The conventional optical information recording medium is manufactured as follows. In other words, when a recording layer based on an organic dye is formed on the substrate, it is rotated. The dye is easily applied to the substrate at the same time. In particular, the dye solution is applied while the substrate rotates at a constant number of revolutions, and the application is performed regardless of the outer or inner peripheral side of the substrate. The thickness of the film to which the dye is applied becomes thicker on the inner peripheral side of the substrate. Therefore, for example, in some cases, the intensity of the ^ signal of the push-pull signal of the track server is reduced, and the radial direction of the relevant substrate to the push-pull signal The level dispersion is also increased. In this case, the trajectory of the laser beam may be deflected. The film thickness, the push-pull signal, and the reflection ratio need not always be constant. However, the following compromise relationship is maintained through ¥. In other words, when the push-pull signal is due to When the film thickness changes and increases by two, the reflectance decreases. On the other hand, the increase in the signal strength of the push-pull signal is based on the excessive decrease in the reflectance. In this case, the same change occurs because the read signal may have read errors due to excessive reduction in the amplitude of the reproduced signal. The cost of the dye solution accounts for about 30% of the total cost of the disc material. Therefore, in order to reduce the manufacturing cost of the disc, it is necessary to reduce the dye solution as much as possible. The basic paper size is applicable to the Chinese National Standard (CNS) A4 specification (2) 0 X 297 (Li) --------—----- (Please read the notes on the back before filling out this page) Printed clothing for the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 6 ^ 04684 A7 B7 Intellectual Property Bureau of the Ministry of Economic Affairs Printing of clothing by employee consumer cooperatives V. Description of invention (4) Application amount of materials. If the application amount of the dye solution is reduced, the following problems arise. In other words, internal The shape of the side application part is obstructed, the dye film thickness distribution (in the peripheral direction) is poor, and unapplied parts appear. The following techniques can be used to reduce the amount of dye solution application. However, each technique has problems. (1) Relief pressure is reduced This technique involves the following problems. In other words, even if the dye solution is applied to a substrate, the dye solution rolls on the substrate in a so-called spherical flow and the dye solution drops from the substrate. As a result, the dye solution cannot be uniformed. Apply to the entire surface of the substrate. In this case, the problem is the occurrence of non-applied parts, that is, the thickness of the film is uneven. (2) Apply within a shortened period of time. This technique involves the following problems. G's dye is not distributed on the entire substrate, and problems include the occurrence of unapplied parts and uneven thickness of the film. (3) The nozzles on the inner circumference of the substrate stop for a short time. This technique involves the following issues. In other words, the shape of the application portion is disturbed at the innermost periphery and is formed into a perfect circle. Also in this example, the film thickness is not uniform. (4) The nozzle moves quickly. This technique involves the following issues. In other words, even if the dye liquid is applied to the substrate, the dye liquid subsequently moves in a so-called spherical shape, rolls on the substrate, and falls from the substrate. As a result, the dye solution cannot be uniformly applied to the entire substrate surface. The problems in this example are the occurrence of unapplied parts and uneven film thickness. SUMMARY OF THE INVENTION The present invention takes the aforementioned issues into consideration. The object of the present invention is to provide a paper size that is applicable to the Chinese National Standard (CNS) A4 specification (21 × X 297). ---- -------- ---- I-^ (Please read the notes on the back before filling this page)

、 Explanation of the invention (Printed in other words, a method for manufacturing optical information recording media by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics, in which the appearance of flaws can be avoided by preventing the splash of the dye solution, and the yield of optical information recording media can be improved The present invention takes the description into consideration, and another object is to provide a method for manufacturing an optical information recording medium, in which the distribution of the push-pull signal quasi-radial direction is reduced, and the signal strength of the push-pull signal is within a specified range, and can be produced. High-quality optical information recording medium. Yet another object of the present invention is to provide a method for manufacturing an optical information recording medium, in which the shape of the innermost application part can be obtained even with a small amount of solution, which can be applied to the entire substrate. A uniformly applied dye film is formed on the surface, and a high-quality optical information recording medium can be produced. Another object of the present invention is to provide a high-quality optical information recording medium in which the innermost application portion can be applied even with a small amount of solution. 'Form a perfect shape' and shape on the entire surface of the substrate The invention relates to a method for uniformly applying a dye film. The present invention relates to a method for manufacturing a thermal mode type optical information recording medium. The medium has a recording layer on a substrate and can record information by irradiating a laser beam. The method includes rotating the substrate while The step of applying the recording layer-forming solution on the substrate, wherein a period of time from the time point when the solution application is started to the time point when the solution application rate is constant, is preferably not less than 0.1 seconds and not more than 1 second. In the present invention, the time point at which the solution is started to be applied means the time point at which the solution starts to be discharged from the front of the nozzle. Generally, the amount of solution released changes from the time point at which the solution is started to application to the time elapsed. Constant no-load starts at the time point when the solution starts to be applied. As for the application rate is constant ------------------ 1 ^ --------- (Please read the (Please fill in this page again)

504684 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. The period of time for the invention description (6) "means the period from when the solution is applied until the release of the solution is fixed (stable) to be constant. When the period of time is not less than 0J seconds but not more than 1 second, the time when the solution falls on the substrate can prevent the solution from being scattered in all directions, and can prevent any defective appearance. This leads to an improvement in the yield of the optical recording medium. When the aforementioned manufacturing method uses a wide device, the valve is opened and closed according to the opening and closing of the valve and the solution is shallowly placed on the substrate. The valve opening speed of the method is not less than 5% and not more than 50% of the maximum speed. In other words, the valve opening speed of the valve device for releasing the solution is preferably adjusted to be low. When the speed controller that controls the fluid flow rate of the supply valve device uses the fluid pressure to open and close the valve, the speed of the fluid flow rate control is preferably not less than 5% and not more than 50%. The solution may be a dye-containing organic solvent. The application start position is preferably on the substrate. It is preferable that the application start position is separated from the non-application part on the inner peripheral side of the substrate by not less than 5 mm. In other words, it is preferable that the application start position is a position deflected by not less than 5 mm from the end of the inner peripheral side of the area intended to form the recording layer toward the outer periphery. When the application start position is sufficiently separated from the non-application part located on the inner peripheral side of the substrate, there is no problem even if the solution is scattered, for the following reasons. In other words, the scattered droplets flow away during the subsequent application process. Just after the start of the application, the amount of solution bleed was transiently unstable depending on the elapsed time. Therefore, the preferred application starts at a position slightly spaced from the innermost circumference. If the application system starts from the innermost circumference, it causes a problem of uneven application. As a result, the inner peripheral end of the recording layer cannot be formed into a perfect circle. ----—— — — — —-- 1 -------- Order ·! ---- I (Please read the notes on the back before filling this page)

9 A7 B7 V. Description of the invention (7 From once the application is started, the nozzle is then moved at least once toward the inner peripheral side. This way, the inner peripheral end of the recording layer is formed into a perfect circle. But if the application system starts at the base Outside the substrate, when the nozzle is adjacent to the outer periphery of the substrate, the liquid splashes in all directions. As a result, the problem of the adjacent application part being stained and the solution sticking to the back of the substrate. Therefore, the application start position is preferably located on the substrate. On the material, it is better to deflection by not less than 5 mm from the outer periphery of the substrate toward the inner circumference. Further, the application start position is deflected by not less than 5 toward the outer periphery from the non-casting portion located on the inner periphery of the substrate. Mm, preferably not less than 10 mm and more preferably not less than 15 mm, preferably the pressure applied to the solution is not more than 丨 kgf / cm². Generally, when the solution is applied to a substrate, the solution suddenly starts to release. , The solution splashes in all directions. However, when the pressure applied to the solution is small, the solution is less severely reduced. Therefore, problems such as appearance defects do not occur. Line However, if the pressure is too low, it is applied per unit Of The amount of solution decreases and the application rate is slow. Therefore, it takes a long time to apply the prescribed amount of solution. As a result, problems such as reduction of output and production efficiency may be caused. Therefore, as mentioned above, the upper limit of the preferred range of pressure applied to the solution is not More than 1 kgf / cm2, preferably not more than 0.8 kgf / cm2, and most preferably not more than 0.6 kgf / cm2. The lower limit is not less than 0.02 kgf / cm2, preferably a lot At 0.05 kgf / cm2 and preferably not less than 0.1 kgf / cm2. In the method described above, it is also preferred that the nozzle for applying the solution to the substrate moves toward the inner circumference of the material, and the substrate rotates. The paper size is in accordance with the Chinese National Standard (CNS) A4 specification (2) 0297 mm. The Intellectual Property Bureau of the Ministry of Economic Affairs ’s Consumer Cooperatives printed 504684 'Α7 ---- B7 V. Description of the invention (8) In this way, the shape of the part applied on the inner circumference can be excellent even when the amount of solution is small. Furthermore, a uniform application film can be formed on the entire surface of the substrate. In this way, a high-quality optical information recording medium can be manufactured In this method, the application of the preferred solution starts at the outer circumference of the substrate. In particular, the application of the solution begins at an outward portion located at a radius of 3/4 from the center of the substrate, and preferably begins at The 5/6 position is the outward part, and the best start is at the 9/10 position, the reason is as follows. In other words, if the solution is only applied to the inner peripheral part, the solution cannot be distributed on the entire surface of the substrate. As a result, the thickness distribution of the film on the outer circumference is poor. When the solution is applied to the outer circumference of the substrate, the substrate rotation number does not exceed 300 rpm, preferably does not exceed 250 rpm, and most preferably does not exceed 200 rpm, for reasons as described below. When the solution is applied to the outer circumference, if the number of revolutions is large, the solution behaves like a sphere tends to roll and fall. As a result, the solution is not applied to the substrate. ° In the foregoing method, the solution is not more than 1.0 atmosphere by using a nozzle. | The reason for 'preferably no greater than .0.7 atmospheres and most preferably no greater than 0.5 atmospheres' is as follows. In other words, if the pressure is high, the solution flow rate increases, and the amount of solution increases, resulting in expensive manufacturing costs. When the nozzle diameter is doubled, the pressure is 1/4 of the aforementioned value. When the nozzle diameter is 1/2, the pressure is preferably 4 times the aforementioned value. In the foregoing method, the solution is applied through the use of a nozzle at a flow rate of not more than 0.5 cc / second ', preferably not more than 0.3 cc / second, and most preferably not more than 0.2 cc / second, for reasons described below. In other words, if the solution is applied at a large flow rate, the amount of the dye solution is increased, and the production cost is expensive. This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) ΙΙΙΙΙΙΙΙΙΙΙΙΙ — -HI — — — ^ 11111111 (Please read the notes on the back before filling this page) 11 Α7 Β7 Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperatives V. Description of Invention (9) In the stated method, when the solution is applied to the inner circumference of the substrate, the substrate rotation speed is not less than 300 revolutions per minute, preferably not less than 35 revolutions per minute and The best is not less than 400 revolutions per minute, the reason is as follows. In other words, if the number of revolutions is small, the shape of the applied portion on the inner circumference is not substantially perfect, and the thickness of the recording layer is not uniform. The nozzle must stop on the inner circumference for at least a period of time corresponding to one revolution. In this case, if the number of revolutions is small, the stop time of the nozzle is extended. As a result, a problem arises in that the amount of solution leakage increases. Therefore, the number of revolutions is preferably set in the aforementioned range of revolutions. In the method described above, the number of revolutions of the substrate when the solution is applied to the inner periphery of the substrate is adjusted to be greater than the number of revolutions applied when the solution is applied to the outer periphery of the substrate, and is not less than 50 revolutions. The former is preferably greater than the latter by not less than 100 revolutions and the best by not less than 200 revolutions. In this method, the time for increasing the number of revolutions of the substrate is set just before the nozzle reaches the innermost circumference. In particular, the increase in the number of rotations of the substrate is at the stage where the nozzle reaches a distance of less than 20 mm from the inner circumference of the substrate, which is preferably the stage when the nozzle reaches a distance less than 10 mm from the inner circumference of the substrate, and is most preferably The nozzle reaches the stage where the distance from the inner circumference of the substrate is less than 5 mm. In the aforementioned method, 'the preferred air-conditioned air speed relative to the substrate application surface speed is set to not more than about 0.4 m / sec. It is also preferable to combine the following procedures. One of the procedures is to increase the number of rotations of the substrate when the nozzle applying the solution to the substrate has the inner circumference of the substrate moving toward the outer circumference. When the inner circumference moves, the rotation speed of the substrate increases. Another characteristic aspect of the present invention is that the paper size of a thermal mode type optical information notebook paper is applicable to the Chinese national standard ⑵〇χ 297 public love)-1 -12--l · -------------- ----— Order --------- Line ί Please read the notes on the back before filling out this page} Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 504684 '' Α7 ______ Β7 V. Description of the invention ( 1) A recording medium includes a recording layer on a substrate for recording information by irradiating a laser beam, wherein the recording layer is formed by applying a solution for forming a recording layer on the substrate while rotating the substrate, and forming the recording layer. Since the solution is applied, the number of revolutions of the substrate increases when the solution is applied to the inner peripheral side of the substrate. In this way, a high-quality optical information recording medium can be obtained in which even if a small amount of solution is used, the inner circumferential shape is excellent, and a uniformly applied dye film can be formed on the entire surface of the substrate. The foregoing, and other objects, features, and advantages of the present invention will become more apparent when described later in conjunction with the drawings, which illustrate the preferred embodiments of the present invention by way of example. Brief Description of the Drawings Figure 1 shows a configuration example of a manufacturing system according to a specific embodiment of the present invention; Figure 2 shows a configuration of a rotary device installed on an application device; Figure 3 shows a perspective view illustrating a rotary device installed on an application device Figure installation; Figure 4 shows the configuration of the solution supply device of the group rotary device; Figure 5 shows the characteristic curve to illustrate the change in the amount of solution (bleeding amount) released by the valve device over time; The figure is a plan view illustrating the nozzle of the valve device; FIG. 7 is a side view illustrating the example of the nozzle of the valve device; FIG. 8 is a partially deleted enlarged sectional view illustrating another example of the nozzle of the valve device; and FIG. 9 is The floor plan illustrates the air-conditioning system as an example; this paper size is applicable to China National Standard (CNS) A4 (21GX 297 male f) I ----- »--— — — III ^ --- I ---- line (please Read the notes on the back before filling this page) 13 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 〇 4684 A7 ----- B7 ____ V. Description of the invention (11) Figure 10 shows the air-conditioning system as an example from the front view; Figure 11 is a side view Exemplify the air-conditioning system; Figure 12 shows the configuration of the exhaust system of the air-conditioning system with overlapping coordinate exhaust lines; 'Figure 13 is a cross-sectional view illustrating the configuration of the buffer box installed in the exhaust device; Figure 14 is a block diagram Illustrate the configuration of the air conditioner as an example; Figure 15A is a production step illustrating the state where a groove is formed on the substrate; Figure 15B is a production step illustrating the state where a dye recording layer is formed on the substrate; Figure 15C is production The steps illustrate a state in which a reflective layer is formed on the substrate; FIG. 16A is a production step illustrating the state of the substrate edge being washed; FIG. 16B is a production step illustrating the state of the substrate formed by the protective layer; FIG. 17 is The block diagram illustrates a first process step when a dye solution is applied to a substrate by using a production system according to a specific embodiment of the present invention. FIG. 18 is a block diagram illustrating a process of applying a dye solution to a substrate according to a specific embodiment of the present invention by using a production system. The second process step when the dye solution is applied to the substrate; Figure 19 illustrates the timing diagram of how to increase the number of revolutions of the two substrates in the second method. Figure 2 Figure 0 illustrates the starting application position of the substrate; l · ------------------- Order --------- (Please read the precautions on the back first (Fill in this page again)

14 Α7 Β7 Printing of clothing by employees' cooperatives in the Intellectual Property Bureau of the Ministry of Economic Affairs

V. Description of the invention (12) FIG. 21 illustrates the shape of the application part located at the innermost circumference when performing the second method; FIG. 22 is a configuration diagram illustrating another example of a production system according to another specific embodiment of the present invention Figure 23 is a table illustrating the first experimental result; Figure 24 is a table illustrating the second experimental result; Figure 25 is a table illustrating the third experimental result; Figure 26 is an example obtained in Comparative Examples 14 and 15; The shape of the inner part of the application circle; and Figure 27 illustrates the discoloration of the dye solution when it is applied. The description of the preferred embodiment will be described with reference to FIGS. 1 to 27, in which a method for manufacturing an optical information recording medium, a method for applying a dye to a dye-based optical disc, and an optical information recording medium according to the present invention, For example, it is applied to a manufacturing optical disc such as a CD-R system (hereinafter simply referred to as a "manufacturing system according to the present invention"). As shown in FIG. 1, a manufacturing system 10 according to a specific embodiment of the present invention includes two molding equipment (first and second molding equipment 1.2A, 12B), for example, by injection molding, compression molding, or injection molding. The substrate application device 14 is used to form a dye recording layer on the substrate. The application device 14 is applied to the first main surface of the substrate and then dried, and the post-treatment device 16 is used to form a reflective layer on the substrate by, for example, sputtering. Then, a UV-curable solution is applied to the reflective layer, and then a UV-curable solution is applied to form a protective layer on the reflective layer. The first and second molding equipment 12A and 12B each include a molding machine. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2) 0x297 mm. ------------ -^ --------- ^ < Please read the notes on the back before filling out this page) 15 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, Invention Description (13) Used for resin materials, Such as polycarbonate injection molding, compression molding or injection compression molding to produce a substrate, the first-main surface of the substrate is formed with tracking grooves or irregular (grooves) to indicate information such as address signals, a cooling The section 22 is used to cool the substrate taken out by the nuclear machine 20; and a stacking section 26 (stacking column turntable) is installed with the yike stacking column 24 for stacking and storing the cooled substrate. The application device 14 includes three processing units 30, 32, and 34. The first processing table 30 includes a stacking column accommodating section 40 for accommodating the stack transferred by the first and second molding devices 12A, 12B. Column 24; a first transfer mechanism 42 for transferring substrates one by one from the stacking columns 24 accommodated in the stacking column accommodating section 40 to transfer the substrates to the next step; and an electrostatic blowing mechanism 44 for borrowing the first transfer mechanism The 42 transported substrate removes static electricity. The line second processing unit 32 includes a second transfer mechanism 46 to sequentially transfer the substrates that have completed the electrostatic blowing step to the next step in the first processing unit 30, and a dye application mechanism 48 to apply the dye application liquid to the respective borrowers. The second transfer mechanism 46 transfers a plurality of substrates; and a third transfer mechanism 50 is used to transfer the completed dye application processing substrates one by one to the next step. The dye application mechanism 48 includes six spin coating devices 52. The third processing unit 34 includes a back surface washing mechanism 54 for washing the back surface of the substrate transferred by the third transfer mechanism 50; a fourth transfer mechanism 56 for transferring the substrate that has completed the back washing to the next step; a numbering mechanism 5 8 is used to print the batch number equal to the substrate transferred from the fourth transfer mechanism 56; a fifth transfer mechanism 60 is used to transfer the substrate that has completed the batch number printing to the next step: an inspection mechanism 62 is used to Inspect whether there are defects and film thickness on the substrate transferred from the fifth transfer mechanism 60 to the dye recording layer; and a classification 16-This paper size applies to China National Standard (CNS) A4 specification (2) 0 X 297 mm ） The Intellectual Property Bureau Employees' Cooperative Printing Coat A7 B7 of the Ministry of Economic Affairs 5. The description of the invention (M) The mechanism 68 is used to classify the substrate into substrates stacked on a normal product stacking column 64 based on the results of the inspection by the inspection agency 62 And stacking a substrate of the defective product post 66. A first partition plate 70 is installed between the first processing unit 30 and the second processing unit 32. The second partition plate 72 is also mounted between the second processing unit 32 and the third processing unit 34 in the same manner as described above. An opening (not shown) has a size that does not close the transfer path for transferring the substrate by the second transfer mechanism 46, and the opening is formed in the lower part of the first partition plate 70. An opening (not shown in the figure) is formed at the lower part of the second partition plate 72, and the opening has a size not to close the transfer path of the substrate transferred from the second transfer mechanism 50. The post-processing equipment 16 includes a stacking column accommodating section 80 for accommodating the normal product stacking column 64 transferred by the application device 16; a sixth transfer mechanism for the stacking column of the stacking column accommodating section by Gouna Materials are extracted one by one and the substrate is transferred to the next step; a first electrostatic blowing mechanism 84 is used to remove static electricity from the substrate transferred by the sixth transfer mechanism 82; a seventh transfer mechanism 86 is used to sequentially transfer the After completing the electrostatic blowing process of the substrate to the next step, a money mechanism 88 is used to form a reflective layer by sputtering to the substrate transferred by the seventh transfer mechanism 86 to the first main surface; an eighth transfer mechanism 卯It is used to sequentially transfer the substrate that has completed the sputtering reflective layer to the next step; and an edge washing mechanism 92 is used to wash the periphery (edge portion) of the substrate transferred by the eighth transfer mechanism 90. The post-processing equipment 16 further includes a second electrostatic blowing mechanism to remove static electricity from the substrate that has been subjected to edge washing; a UV-curable liquid storage application mechanism 96 for applying a UV-curable liquid to the finished static paper Dimensions are applicable to China National Standard (CNS) A4 specifications (2〗 0 X 297 mm) ^ -------- ^ 0 -------- ^ (Please read the notes on the back before filling in this Page) 17 504684 Employees 'Cooperatives' Seal of Intellectual Property Bureau, Ministry of Economic Affairs? Agriculture A7 B7 V. Description of the invention (15) Send the treated substrate to the first main surface; a centrifugal mechanism 98 is used to rotate the substrate which has completed the application of the UV-curable liquid at high speed to obtain a uniform thickness of UV-curable The solution application film is on the substrate; an ultraviolet light irradiating mechanism 100 is used to irradiate the ultraviolet light onto the substrate that has completed the application of the ultraviolet curable solution and the rotation treatment, so the ultraviolet curable solution can be cured to form a first protective layer on the substrate. The first main surface of the material; a ninth transfer mechanism, which is used to transfer the substrate to the second electrostatic blowing mechanism 94, the ultraviolet light curing solution application mechanism 96, the centrifuge mechanism 98, and the ultraviolet light irradiation mechanism 10. 〇; A tenth transfer mechanism 104 is used to transfer the second step of the substrate that has been irradiated with ultraviolet light; a defect inspection mechanism 106 is used to check the substrate transferred by the tenth transfer mechanism 104 to the application surface and the surface of the protective layer Defects; a feature inspection mechanism 108 for inspecting signal characteristics based on grooves formed in the substrate; and a classification mechanism 114 for borrowing defect inspection mechanisms 106 and feature inspection mechanisms ι〇8 Line test results, the substrate will be classified and stacked on the base material of the normal base stacking column 11〇 goods stacked on the stacking column 112. The defective. The configuration of one of the spin coating devices 52 will now be described with reference to FIGS. 2 to 3. As shown in FIGS. 2 and 3, the spin coating device 52 includes a solution supply device 400, a centrifuge head device 402, and a splash prevention wall 400. As shown in FIG. 4, the solution supply device 400 includes a pressurizing tank 452 containing a dye liquid fed therein and the pressure applied to the dye liquid is adjusted by a regulator 450. A valve device 408 is used to control the dye liquid according to the valve opening. Releasing and stopping with respect to the substrate 200; and a duct 454 is provided to extend from the pressure tank 452 to the valve device 408 for supplying the dye liquid fed to the pressure tank 452 to the valve device 408. A predetermined amount of the dye solution is dripped on the substrate 202 through the nozzle 406 of the valve device 408. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2) 0 × 297 mm. H »1 nnn ϋ ϋ ϋ n ϋ · n ϋ 1 I ϋ nnn ϋ a— · 1 —in IB (Please read the notes on the back before filling this page) 18 504684 A7 B7 V. Description of the invention (I6) on the surface. The pressure of the dye solution added to the pressure tank 452 is set to not more than 1 kg / cm2. • I 丨 — — — — — — — — — — — II (Please read the notes on the back before filling out this page) As shown in Figures 2 and 3, the solution supply device 400 is configured so that A manipulation mechanism 414 swings the solution from the waiting position to the position on the substrate 202. The manipulation mechanism 414 includes a support plate 410 for supporting the nozzle 406 directly downward and a motor 412 for swinging the support plate 41 in a horizontal direction. As shown in Fig. 4, since the valve device 408 is provided with a quick-release valve 456, the internal valve system is opened and closed by fluid pressure. Speed controllers (first and second speed controllers 462, 464) are used to regulate the fluid flow rate and are connected to the fluid supply line 458 and the fluid discharge line 460, respectively. The quick release valve 456 has an input port 466 connected to a fluid supply line 458, an output port 470 connected to a valve device main body 468, and a drain port 472 connected to a fluid release line 460. The fluid introduced from the fluid supply line 458 is supplied to the valve device main body 468 through the input port 466 and the output port 470 of the quick-release valve 456. The internal valve f is printed with the pressure of the main body of the valve device 468 compared to the fluid supply and therefore the pressure is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and operates in the opening direction. Therefore, the valve opening speed (variation of opening degree per unit time) is proportional to the fluid supply amount per unit time. Supply $ is adjusted according to the opening degree of the first speed controller 462. When the valve is operated in the opening direction, the dye liquid supplied from the pressure tank 452 is discharged through the nozzle of the valve device 408, so that the dye has been applied to the substrate 200. During such processing, as shown in Fig. 5, the discharge amount substantially increases in proportion to the increase in the valve opening degree according to the passage time. The release of Xia Yu has passed a certain period of time, that is, the wide open phase has become constant x 297 mm.) The paper ruler S has been used in China National Standard (CNS) A4 specifications (2). 〇19 504684 A7 B7 Intellectual property of the Ministry of Economic Affairs Bureau ’s consumer cooperative prints clothing, invention description (17) In other words, the application speed is increased approximately proportionally during the transitional phase, where the progressive opening phase is approximately constant. The application speed is constant during the full opening phase of the valve. The magnitude of the change in the amount of discharge (the slope of the characteristic curve ) It depends on the opening speed of the valve during the transition period when the release rate increases south. The change of the wave release rate decreases as the opening speed decreases. In other words, the smaller the opening speed of the first speed controller 462, the lower the release rate. The smaller the range of change (the slope of the characteristic curve), and the longer the time τδ from the time point to when the dye solution is started to the time point t1 (the time point at which the dye liquid input speed reaches a constant level). Conversely, the first The greater the opening speed of the speed controller 462, the greater the change in the amount of release, and the time from the start of the application of the dye liquid to the time of full penalty The shorter the time τδ of tl. In this embodiment, the term "time point t0 at which the dye liquid starts to be applied" means the time point at which the dye liquid starts to be discharged from the front line of the nozzle 406. In the specific embodiment of the present invention, The time from the start of application to the time point t1 when the valve is fully open is not less than 0.1 second and not more than 1 second. In order to meet this condition, the specific embodiment of the present invention is designed to turn on the first speed controller 462 The speed is not less than 5% but not more than 50%. In this way, the opening speed of the puppet is not less than 50/0 and not more than 50/0 relative to the maximum speed. In this way, the dye liquid falls on the substrate 202 At that time, the dye liquid can be prevented from splashing in all directions. In this way, the appearance of defects can be avoided. On the other hand, the fluid in the valve device body 牝 8 is introduced into the fluid discharge line through the output port 47o and the discharge port 472. Inside 460. The internal valve is made I in the closing direction according to the pressure of the valve device main body 468 against the decrease of the fluid discharge amount .----------- ^ --------- (Please read the back first (Notes for filling in this page)

-20-504684 A7 ___ B7 _ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of Invention (18). Therefore, the wide closing speed is proportional to the fluid release amount per unit time. The bleeding amount can be adjusted according to the opening speed of the second speed controller 464. When the valve is operated in the closing direction, the discharge of the dye liquid through the nozzle 406 stops, and the dye application treatment of the substrate 202 is completed. During this process, as shown in Fig. 5, the amount of bleed substantially decreases according to the passage time corresponding to the decrease in the valve opening degree. When the valve is fully opened, the amount of the dye solution is zero, in other words, the bubble of the dye solution is stopped. Also in this example, the variation range of the relief amount (the slope of the characteristic curve) is determined based on the valve closing speed at the stage where the relief amount is proportionally reduced. The magnitude of the change in the release amount decreases as the closing speed decreases. In other words, the smaller the opening degree of the second speed control zero 464 is, the smaller the variation of the discharge amount is, and from the stop point of the dye liquid start time point t2 to the valve fully closed time point t3 (the time when the wave volume of the dye liquid is zero) Point) the longer π. Conversely, the greater the degree of opening of the second speed controller 464 is, the greater the change in the amount of wave discharge is, and the shorter the time ts from the time point t2 at which the dye liquid application is stopped to the time point t3 at which the valve is fully closed is shorter. In a specific embodiment of the present invention, the opening speed of the second speed controller 464 is set to 100%, and the time π elapsed from the time point t2 when the dye liquid stops application to the time point t3 when the valve is fully closed is shortened as much as possible. On the other hand, as shown in Figs. 2 and 3, the centrifugal head device 402 is disposed below the solution supply device 400. The base material 202 is maintained horizontally by means of a removable fixing device 420, and is rotated by an axis by means of a drive motor (not shown in the figure). 0 This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm). ) — — — — — — — — — — — Ί i IIIIII t 111! 1! ^, (Please read the notes on the back before filling out this page) 21

Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

The dye solution is dropped onto the substrate 202 from the nozzle 406 of the solution supply device 400. The substrate is rotated in a state of being horizontally held by the centrifuge head device 402. The dye solution is cast toward the outer peripheral side of the surface of the substrate 202. The excess dye liquid is separated from the outer periphery of the substrate 202 and is discharged to the outside. As a result, the application film is dried. As such, an application film (dye recording layer 204) is formed on the substrate 202. The splash prevention wall 404 is installed to prevent the excessive dye liquid sprayed from the outer periphery of the substrate 202 toward the outside from being scattered to the surroundings. The splash prevention wall 400 is provided around the centrifuge head device 402, so an opening 422 is formed in the upper portion. Excess dye is also collected by means of the splash prevention wall 404 and recovered through the extraction port 424. Local ventilation of each spin coating device 52 of the second processing unit 32 is performed as follows (refer to FIG. 1). In other words, the pores introduced through the upper opening 422 formed in the splash-prevention wall 404 allow flowing back to the surface of the substrate 202. The air is then exhausted through an exhaust pipe 426, which is attached to the lower part of each centrifugal head unit 402. As shown in FIGS. 6 and 7, the nozzle 406 of the solution supply device 400 includes an elongated cylindrical nozzle body 432 having a through hole 430 formed to penetrate in the axial direction, and an attachment section 434 for fixing the nozzle body. 432 and support plate 41 (refer to FIG. 3). The nozzle body 432 has the following surface. In other words, the front end surface and the outer or inner wall surface or both the outer and inner wall surfaces are not less than 1 mm from the front end surface, and these surfaces are made of a fluorine compound. Useful fluorine compounds include, for example, polytetrafluoroethylene and polytetrafluoroethylene-containing materials. Preferred examples of the nozzle 406 used in this embodiment include, for example, the nozzle 406 includes a front end surface of the nozzle body 432 and a front end surface of not less than

This paper size applies to China National Standard (CNS) A4 specifications (2) 〇297297 love_) " -------- 1 --------- (Please read the precautions on the back before (Fill in this page) 22 504684., Α7

Printing of clothing by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

5. Description of the invention (20) The part of the 1 mm distance range is formed using a fluorine compound, as shown in FIG. 7; and a nozzle 406 includes a portion 44 of the front end face of the nozzle body 432, which includes the outer and The inner wall surface 442,444 is not less than the front surface 440! The outer or inner wall surface, or both, with a distance of millimeters is coated with a fluorine compound, as shown in Figure 8. When the portion including the front end surface of the nozzle body 432 and a distance of not less than 1 mm from the front end surface is formed of a fluorine compound, from the viewpoint of use, the following configuration is preferable. In other words, for example, the nozzle body 432 is made of stainless steel. Further, the front end surface and a portion with a maximum distance of 5 mm are made of a fluoride compound. When the front end surface 446 of the covering nozzle body 432 and the outer and inner wall surfaces 442, 444 are included, or the inner wall surface or both are not less than 1 mm from the front end surface, the part is made of fluorine compounds, as described in As shown in FIG. 8, it is preferable that the area from the front end surface 440 of the nozzle body 432 to a distance of not less than 10 mm is coated with a fluorine compound. More preferably, the area of the T-nozzle body 432 is coated with a fluorine compound. When the aforementioned area is coated, the thickness is not particularly limited. However, the thickness is approximately in the range of 5 to 500 microns. The material of the mouth main body 43 2 is preferably stainless steel as described above. The diameter of the through-hole 430 formed through the nozzle body 432 is usually in the range of 0.5 to 1.0 mm. As shown in FIG. 1, the manufacturing system 10 is further equipped with an air conditioning system 300 and a second processing unit 32 of the application device 14. As shown in Figs. 9 and 10, the air conditioner 704 is installed on the ceiling of the first processing unit 30 through a high-efficiency packed bed filter (ZEPA filter) 700. The HPA filter 702 is mounted on the ceiling of the third processing unit 34. This paper size applies to China National Standard (CNS) A4 specification (210 x 297 public love) I ^ ------ 11 -------- ^ (Please read the precautions on the back before filling this page) 23 ⑽4 ⑽4 Printed clothing A7 of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ------- --_ B7_____ V. Description of the invention (21) The air conditioner 704 feeds clean air to the first processing unit 30, so the first processing order The temperature of 疋 30 is controlled. The clean air is introduced into the third processing unit 34 through a hepa filter 702. In other aspects, as shown in Figures 9 and 14, the air conditioning system 300 includes an air conditioner 302 to feed clean air "ca" to the application device 14; a dehumidifier 304 to introduce external air rea "to dehumidify, so the air It is output as primary air al; and an exhaust device 3006 (refer to FIG. 12) is used for receiving partial bleed air (partial bleed air) "da" from the application device 14 and exhaust with overlapping coordinates of feed Pipeline. The local bleed air "da" includes, for example, bleed air bleed by the sixth spin coating device 52 of the dye application mechanism 48 of the application device 14. In other aspects, as shown in Figures 9 and 10, the air-conditioning system 300 is provided with a duct 3 10 to feed the primary air ai output by the dehumidifier 304 to the air-conditioning unit 302, and the guide 310 is installed in the dehumidifier. 300 and 300 air conditioners. As shown in FIG. 12, the exhaust pipe 426 is provided between each exhaust side of the exhaust device 306 and the sixth spin coating device 52 of the dye mechanism 48 of the application device 14. A plurality of air supply ducts 32 ° & 32 ° (1) are installed between the air conditioner 302 and the application equipment 14 (1 in the illustrated example of the drawing) to feed clean air "ca" to The use device 14 and a plurality of (the illustrated example in the drawing is 8) return ducts 322 are used to return the locally released air "such as" > the release air "ra" from the application device 14 to the air conditioner 3202. The air conditioner 302 is provided with an air inlet 71 for introducing external air "⑽". A filter 712 is attached to the air inlet 71. Under normal air-conditioning control (when low-humidity control is not performed), Air inlet 7 丨 〇 The air supply introduced by this paper is in accordance with China National Standard (CNS) A4 specification (2〗 0 X 297 public love) —-------- ^ —------ (Please Read the precautions on the back before filling this page) 24 504684 Member of the Intellectual Property Bureau of the Ministry of Economic Affairs X Printed by the Consumer Cooperative A7 B7 V. Description of the invention (22) The air conditioner 302 is used as primary air. Use dehumidifiers when controlling low humidity. 304. As shown in Figures 9 and 10, the dehumidifier 304 is provided with an air inlet 324 for The external air "ea" is attached. A pre-filter 326 is attached to the air inlet 324. Therefore, the introduction of the external air "ea" through the air inlet 324 has used the front filter 326 to remove dust, dust, etc. The external air " "ea" is introduced into the inside of the dehumidifier 300 and is dehumidified inside the dehumidifier 304. The external air supply after the dehumidification is set in the > downstream air conditioner 302 as the primary air. As shown in FIG. 14, the air conditioner 302 Contains a mixer 330 for mixing the primary air a 1 from the dehumidifier 304 or the air inlet 710 with the bleed air (bleed air other than local bleed air) r ra "from the application equipment to obtain the mixed air" ha " For output; two humidifiers 332a, 3321} for humidifying the mixed air "ha" mixed to 330 output to obtain secondary air a2 for output; and four blowers 334a to 334d for The secondary air a2 of the two humidifiers 332a, 332b feeds the application device 14. Each of the humidifiers 332a, 332b includes a heating plate 336 inside to add vaporized water to the primary air al. Pure water is distributed in On hot plate 336 The pure water used in this embodiment is approximately pure water with a specific resistance of not less than 0.15 million ohms (room temperature). It is preferable to use a specific resistance of not less than 15 million ohms (room temperature) and a better specific resistance Pure water of not less than 15 million ohms (room temperature). The method for obtaining pure water with specific resistance of 2 million ohms (room temperature) in this embodiment includes, for example, the use of distillation and ion The method of exchanging resin. However, it is better to bond the impurity removal efficiency, for example, IIIIIII — — — — 1 — III 1 1 — — — — — — — — — (Please read the precautions on the back before (Fill in this page) 25 Α7

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of invention (25) side and downstream side 'Therefore, the amount of exhaust gas discharged to the outdoors can be adjusted. Next, a process for producing an optical disc using the manufacturing system 10 will be described with reference to FIGS. 15A to 18. First, a 'resin material such as polycarbonate is injection molded, compression molded or injection molded' using a molding machine 20 of the first and second grinding equipment 12A, 12B to manufacture a track groove or a guide including indication information such as an address signal. A regular portion (groove) 200 is formed on the first main surface, as shown in FIG. 15A. The material of the substrate 202 includes, for example, polycarbonate, acrylic resins such as polymethyl methacrylate, vinyl gas-based resins such as polyethylene-based gas and vinyl gas copolymers, epoxy resins, amorphous polysilicon, and Polyester. These materials can be used in combination if desired. Among the foregoing materials, polycarbonate is preferably used in view of, for example, water resistance, dimensional stability, and price. The depth of the groove 200 is preferably in the range of 0.01 to 0.3 micron. The half-width value is preferably in the range of 0.2 to 0.9 microns. The substrate 202 is taken out by the molding machine 20, cooled in a cooling section 22 provided at a downstream stage, and then stacked on a stacking column 24 with its first main surface facing downward. At the stage where a predetermined number of substrates 202 are stacked on the stacking column 24, the stacking column 24 is taken out by the molding equipment 12A, 12B. The stacking column 24 is transferred to the subsequent application device 14 and is accommodated in the stacking column receiving section 40 of the application device 14. The transfer is carried out using a vehicle, or it can be carried out using self-propelled automatic transfer equipment. When the stacking column 24 is accommodated in the stacking column accommodating section 40, the first transfer mechanism 42 is actuated. The substrates 202 are taken out one by one from the stacking column 24 and transferred to the electrostatic blowing mechanism 44 provided at the downstream stage. By electrostatic blower, the paper size is applicable to China National Standard (CNS) A4 specifications (2) 0x297 public love) l ---------------- IIII I ----- a (Please read the precautions on the back before filling out this page)

V. Description of the invention (26) The static electricity is removed by the substrate 202 transferred to the electrostatic blowing mechanism 44. The substrate 202 is then transferred by a second transfer mechanism 46 to a subsequent dye application mechanism 48. The substrate 202 is introduced into any one of the six spin-coating devices 52. The dye solution is applied to the first main surface of the substrate 202 which is introduced into the interior of the spin coating device 52. The substrate 202 is then rotated at a south speed to obtain a uniform thickness of the dye solution, followed by applying a drying treatment. As such, as shown in FIG. 15B, the dye recording layer 204 is formed on the first main surface of the substrate 202. In other words, the base material 202 introduced into the spin coating device 52 is mounted on the centrifugal head device 402 'as shown in FIG. Subsequently, the dye solution is supplied from a pressurized tank, and a predetermined amount of the dye solution is adjusted by a wide device 408. The dye liquid passes through the nozzle 406 on the inner peripheral side which is lower than the substrate 202. As described, the nozzle 406 has the following surfaces. That is, the portion including the front end surface and the outer or inner wall surface or both the outer and inner wall surfaces at a distance of not less than 1 mm from the front end surface is composed of a fluorine compound. Therefore, adhesion of the dye solution is rare, and deposits and deposits of the dye are rarely formed, otherwise deposition may be caused when the dye solution is dried. Therefore, the application film can be smoothly formed without causing any trouble such as defects in the application film. The dye solution obtained by dissolving the dye in an appropriate solvent is used as the dye solution. The concentration of the dye in the dye solution is usually in the range of 0.01 to 15% by weight, preferably 0.01 to 10% by weight, particularly preferably 0.5 to 5% by weight, and most preferably 0.05 to 3% by weight. The centrifuge head device 402 can be rotated at a high speed by a drive motor. The dye solution dripped on the substrate 202 is rotated on the substrate II according to the centrifugal head device 402 — — — — — — — — — — — — — III — ^ · 11111111 (Please read the precautions on the back first (Fill in this page again.)

29 504684

&; £ 部 智 # Printed by a Consumer Cooperative of the Property Bureau

First, the first processing program will be described. At step S1 shown in FIG. 17, the number of revolutions of the substrate 202 is increased to about 27 () revolutions per minute, and at the same time, the support plate 410 (see FIG. 3) of the solution supply device is rotated horizontally to move the nozzle 406, For example, to the position of the substrate 202 with a radius of 46 mm. Subsequently, in step S2, the number of revolutions of the substrate 202 is maintained at 27 rpm, and the application of the dye solution is started. In this state, the support plate 41 rotates in the horizontal direction and moves the nozzle 406 to a predetermined position ps of the substrate 202 in about 2 seconds (see Figs. 4 and 20). As shown in FIGS. 4 and 20, the predetermined position Ps is the following position. In other words, the position is defined by the outer periphery of the substrate 202? 1 The deflection towards the inner circumference is not less than 5 mm. This position is not applied on the inner peripheral side of the substrate 202, such as a dye solution portion, in other words, the distance from the peripheral end P0 in the region formed as the dye recording layer 204 is not less than 5 mm toward the outer circumference, preferably Not less than 10 mm, and more preferably not less than 15 mm. In this specific embodiment, the position is located at a radius of 23 mm. After Ik, the application of the dye solution is started in step S3. The nozzle 4 moves once toward the inner peripheral side. Subsequently, after the application of the dye solution, when the support plate 41 was rotated in the horizontal direction, the nozzle 406 was moved to a position of 40 mm in radius by about 3 seconds. At the same time, the rotation speed of the 'substrate 202 is increased to 550 revolutions per minute. This paper size applies to China National Standard (CNS) A4 specifications (2) 0 × 297 mm

----------- ♦ (Please read the precautions on the back before filling out this page) Order --------- line · 30 Printed clothing by the Intellectual Property Bureau of the Ministry of Economic Affairs Employee Consumption Cooperative 504684 A7 B7 V. Description of the invention (28) Subsequently, in step S4, the application of the dye solution is stopped. The arm 410 is rotated in the horizontal direction to return the nozzle 406 to its original position (initial state). Subsequently, in step S5, the number of revolutions of the substrate 202 is increased to 630 revolutions per minute in 6 seconds. Subsequently, in step S6, the number of revolutions of the substrate 202 is increased to 1400 revolutions per minute in 6.3 seconds. Finally, at step S7, the number of revolutions of the substrate 202 is increased to 2200 revolutions per minute in 1.7 seconds, and then the number of revolutions of the substrate 202 (= 2200 rpm) is maintained for 5 seconds. When the number of revolutions increases from step S5 to step S7, the excessive application solution reaching the outer periphery of the substrate 202 is separated by centrifugal force. The excess application solution is scattered around the edges of the substrate 202. As shown in Figs. 2 and 3, the excessive application solution of money scattered hits the splash prevention wall 404, and was collected in a shallow dish provided below it. Subsequently, excess application liquid is recovered via the suction port 424. The application film is dried during the formation process and after the application film is formed. The thickness of the application film (dye recording layer) is usually in the range of 20 to 500 nm and preferably 50 to 300 nm. In the dye application steps of the foregoing steps S1 to S7, the dry air speed of the feed application device 14 is set to not more than about 0.4 m / s using the air conditioning system 300. In other words, the air-conditioning air speed relative to the dye application surface of the substrate 202 is set to not more than 0.4 m / s. At the completion of the processing stage of step S7, the rotation of the substrate 202 is stopped to complete the application process of applying the dye liquid to the substrate 202. Secondly, the second processing procedure is performed as follows. First, at step S101 shown in FIG. 18, the substrate 202 is rotated at a number of revolutions not exceeding 300 revolutions per minute. The size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (2) 0 X 297 mm) --- --- IIIIII 1 · IIIIIII ^ > — — — — — — — (Please read the notes on the back before filling this page) 31 504684 A7

Printed clothing by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (29) 'At the same time, the arm 410 (see Figure 3) of the solution application device 400 is rotated in the horizontal direction and transfers the nozzle 406 to the center of the substrate 3 / 4 Radius position for outward deflection. At the time point when the nozzle 406 reaches the predetermined position ps, the application of the dye liquid is started. In this procedure, the number of revolutions of the substrate 202 does not exceed 300 revolutions per minute, preferably not more than 250 revolutions per minute, and most preferably not more than 200 revolutions per minute. The position of the nozzle 406 is 3/4 of the radius from the center of the substrate 202, preferably 5/6 and more preferably 9/10. In this specific embodiment, the pressure at which the dye solution is applied using the nozzle 406 is not more than 1.0 atmosphere, preferably not more than 0.7 atmosphere, and most preferably not more than 0.5 atmosphere. When the diameter of the nozzle 406 is doubled, the pressure is preferably 1/4 of the aforementioned value. When the nozzle diameter is reduced to 1/2, the pressure is preferably four times the aforementioned value. The flow rate of applying the dye liquid using the nozzle 406 is not more than 0.5 cc per second, preferably not more than 0.3 cc per second and most preferably not more than 0.2 cc per second. Subsequently, in step S102, the arm 410 moves toward the inner peripheral side of the substrate 202 at a predetermined moving speed, for example, a speed of 30 mm per second, while applying the dye liquid. Then, in step S103, just before the nozzle 406 reaches the inner circumference, the number of revolutions of the base material 202 is increased to be higher than the number of revolutions of the aforementioned base material 202 (the number of revolutions at the application start time point). In this procedure, the timing setting for increasing the number of revolutions of the substrate 202 is as follows, as shown by the straight line A in FIG. 19. In other words, the number of revolutions increases just before the nozzle 406 reaches the inner circumference, and when the nozzle 406 reaches the position less than 20 m away from the innermost circumference of the substrate 202, it is preferable that the distance reached by the nozzle 406 is shorter than 10 sheets. Standards apply to China National Standard (CNS) A4 specifications (2) 0 x 297 mm) ---------------------- ^ -------- -(Please read the notes on the back before filling out this page) 32 504684 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

V. Description of the invention (30) mm position stage, and the optimal nozzle 406 reach distance is shorter than 5 mm position stage. In addition, the timing of increasing the number of revolutions of the substrate 202 can be selected as follows. In other words, the number of revolutions can be increased proportionally according to the movement of the nozzle 406 toward the inner circumference of the substrate 202, as shown by the dotted line B in FIG. 19, or the number of revolutions can be exponentially increased as shown by the dotted line c in FIG. The number of revolutions of the substrate 202 is greater than the number of revolutions at the time point when the application is started, not less than 50 revolutions. The former is greater than the latter, preferably no less than 100 revolutions and best no less than 200 revolutions. Subsequently, at step S104, when the nozzle 406 reaches the inner circumference (for example, at a position of 22 mm in diameter), the arm 410 stops for 0.2 seconds. Subsequently, in step S105, the arm 410 moves toward the outer peripheral side of the substrate 202 at a predetermined moving speed, for example, a speed of 60 mm / sec. Subsequently, in step S106, the application of the dye liquid to the nozzle 406 is stopped at a predetermined distance from the inner periphery in the radial direction. The arm 410 is rotated in the horizontal direction to restore the original position (initial state) of the nozzle 406. The timing of 'stop application' in this procedure is at the stage where the nozzle 406 reaches a distance of less than 20 mm from the inner circumference, preferably at the stage where the nozzle 406 reaches a distance of less than 10 mm, and most preferably when the nozzle 406 reaches a distance of less than 5 mm. Position stage. Then, at step S107, the number of revolutions of the substrate 202 is increased to 630 revolutions per minute in 6 seconds. Subsequently, in step S108, the number of revolutions of the substrate 202 is increased to 1400 revolutions per minute in 6.3 seconds. Finally, in step S109, the number of revolutions of the substrate 202 is increased by 1.7 seconds. The paper size is adapted to the Chinese National Standard (CNS) A4 specification (210 x 297 mm). I — — — — — — illlm ^ illll —- -^ (Please read the notes on the back before filling this page) 504684 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

I -------------- 11 ^ (Please read the notes on the back before filling this page) A7 _____B7 _ ~ 1 ---------- V. Description of the invention ( 31) to 2200 rpm. Subsequently, the number of revolutions of the substrate (2200 rpm) was maintained for 5 seconds. When the number of revolutions is increased from step S107 to step S109, the excessive application solution reaching the outer periphery of the substrate 202 is assisted by centrifugal separation and removal. The excess application solution is scattered around the edges of the substrate 202. As shown in Figs. 2 and 3, the excessive application solution splashed hits the splash prevention wall 404, and a shallow dish placed below it is collected. Subsequently, the excess application solution is recovered via the suction port 424. Also in the second process, the clean air speed fed to the application device 14 using the air-conditioning system 300 is set to not more than about 0.4 m / sec. In other words, the air-conditioning air speed relative to the dye application surface of the substrate is set to not more than about 0.4 m / s. At the processing completion stage of step S109, the rotation of the substrate 202 is stopped and the application treatment of the dye liquid on the substrate 202 is completed. Note that the first process shown in Fig. 17 can be combined with the second process shown in Fig. 18. In the present invention, the dye used for the dye recording layer 204 is not particularly limited. Useful dyes include, for example, cyanine dyes, cyanine dyes, imidazoquinoline dyes' pyrylium dyes, thiohumine dyes, chamomile azulenium dyes, horny sharks (SqUaUdum) Dyes, metal complexes based on nickel or chromium, naphthalene dyes, anthracene dyes, indophenol dyes, indoaniline dyes, triphenylmethane dyes Hexanol (〇χ〇η〇ι) dyes, aluminum dyes, diimmonium dyes, and nitroso dyes. Among these dyes, cyanine dyes, phthalocyanine dyes, camomile ring dyes, shark hum dyes, and oxol dyes are preferably used. The paper size is applicable to China National Standard (CNS) A4 specifications (2) 0X 297. ) 34 A7

V. Description of the invention (32) π and imidazopyreline dyes are printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Solvents for the application agent forming the dye recording layer 204 include, for example, esters such as butyl acetate and cellosolve acetate; ketones such as methyl ethyl ketone, cyclohexanone, and methyl isobutyl ketone; gasified hydrocarbons such as digas Methane, 丨, digas ethane and chloroform; ammonium amines such as dimethylformamide; hydrocarbons such as cyclohexane; ethers such as tetrahydrofuran, acetone and a sigma bowel, alcohols such as ethanol 'n Propanol, isopropanol, n-butanol, and diacetone alcohol; fluorinated solvents such as 2,2,3,3-tetrafluoro-1-propanol; and glycol ethers such as ethylene glycol-methyl ether-ethylene glycol- B bond, propylene glycol monomethyl. The solvent may be used alone or in a suitable manner in combination of two or more solvents in consideration of the properties of the dye to be dissolved. Preferably, 2,2,3 3 · tetrafluoro · 1-propanol is used as the fluorine solvent. If necessary, anti-fading agent and adhesive can be added. Further 'depending on the purpose of use, various additives such as antioxidants, ultraviolet light absorbers, plasticizers and lubricants may be added to the use solution. Representative examples of anti-fading agents include nitroso compounds, metal complexes, diimmonium salts, and amine salts. Such examples are described in patent documents such as Japanese Patent Publication Nos. 2-300288, 3-224793, and 4_146189. Binders include, for example, natural organic polymer compounds such as gelatin, cellulose derivatives, glucosan, rosin, and rubber; and synthetic organic polymer compounds include, for example, hydrocarbon resins such as polyethylene, polypropylene, and polyethylene. And polyisobutylene; vinyl resins such as polyethylene-based gas, polyethylene vinylidene, and polyethylene-based gas-polyvinyl acetate copolymers, acrylic resins such as polymethyl acrylate and polymethyl methacrylate, poly Primary condensation products of vinyl alcohol, gasified polyethylene, epoxy resin, butyraldehyde resin, rubber derivatives and thermosetting resins such as phenol-formaldehyde resin. This paper size applies to China National Standard (CNS) A4 (210x297 mm) I n ϋ ϋ nnnnlnn I nnnnnnn eJ · n I— nn I— i I (Please read the precautions on the back before filling this page) 35 504684 A7

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (33) When using a binder, the usual amount of the binder is not more than 20 parts by weight relative to 100 parts by weight, and preferably not more than 10 parts by weight. Weight ratio, and more preferably not more than 5 parts by weight. The undercoat layer can be provided on the side surface of the substrate 202 forming the dye recording layer 204 to improve flatness' to improve adhesion and prevent the quality of the dye recording layer 204 from being inferior. The undercoat material includes, for example, a high molecular weight compound such as polymethyl methacrylate, acrylic acid-methacrylic acid copolymer, styrene-maleic anhydride copolymer, 'polyvinyl alcohol, N-hydroxymethacrylamide, styrene- Vinyl toluene copolymer 'gas-extended polyethylene, nitrocellulose, polyethylene-based gas, chlorinated polyethylene, polyacetate, polyimide, vinyl acetate-vinyl gas copolymer, ethylene-vinyl acetate Ester copolymers, polyethylene, polypropylene and polycarbonate; and surface modifiers such as Shiyaki coupling. The undercoat layer is formed by dissolving or dispersing the aforementioned substances in an appropriate solvent to prepare an application liquid, and then the application liquid is applied to the surface of the substrate by application methods such as spin coating, dip coating, and extrusion coating. The thickness of the undercoat layer is usually in the range of 0.005 to 20 microns' and preferably 0.00 to 10 microns. The substrate 202 on which the dye recording layer 204 is formed is transferred by the third transfer mechanism 50 to the subsequent back surface washing mechanism 54 to wash the surface (back surface) opposite to the first main surface of the substrate 202. Subsequently, the substrate 202 is sent to the subsequent numbering mechanism 58 by the fourth transfer mechanism 56. As shown in Fig. 20, a stamp 476, such as a lot number, is formed on a transparent portion 474 on the inner periphery of the first main surface or the back surface of the substrate 202 by an inkjet machine. Subsequently, the substrate 202 is transferred to the subsequent inspection by the fifth transfer mechanism 60. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210x297 mm)!,% ------- 丨 order innnn flu —Bi I (Please read the precautions on the back before filling this page) 36 504684 A7 B7 Φ Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (34) Institution 62 to check whether there are any defects in the substrate 202 The film thickness of the dye recording layer 204. The inspection can be performed by irradiating light on the back surface of the substrate 202, and image processing in a light transmission state using, for example, a CCD camera. The results of the inspection by the inspection agency 62 are sent to the subsequent classification agency 68. The substrate 202 that has completed the aforementioned inspection process is classified by the classification mechanism 68 and transferred to a normal product stack column 64 or a defective product stack column 66 based on the inspection results. At the stage where a predetermined number of substrates 202 are stacked on the normal product stacking column 64, the normal product stacking column 64 is taken out by the application device 14 and transferred to the subsequent post-processing device 16. The stacking column 64 is accommodated in the stacking column receiving section 80 of the post-processing apparatus 16. Transfers can be made with a vehicle or with a self-propelled automatic transfer device. When the normal product stacking column 64 is accommodated in the stacking column accommodating section 80, the sixth transfer mechanism 82 is operated. The substrates 202 are taken out one by one from the stacking column 64 and transferred to the electrostatic blowing mechanism 84 provided at the downstream stage. The static electricity is removed from the substrate 202 transferred to the electrostatic blowing mechanism 84 by the first electrostatic blowing mechanism 84. Subsequently, the substrate 202 is transferred to the subsequent sputtering mechanism 88 by the seventh transfer mechanism 86. As shown in FIG. 15C, the reflective layer 208 is formed by full-surface sputtering, but is introduced into the substrate 202 of the sputtering mechanism 88. Except the peripheral part (edge part) of one main surface. The reflective material is a material of the reflective layer 208 and is a material having a high reflectance with respect to the laser beam. Reflective materials include, for example, stainless steel, metalloids, and metals such as Mg, Se, Y, Ti, Zr, Hf, V, Nb, Ta, Cr. The paper dimensions are applicable to China National Standard (CNS) A4 (210 X 297 mm). ) ——--------- ^ ---------- I ——--- line (Please read the precautions on the back before filling out this page) 37 504684 Bureau of Intellectual Property, Ministry of Economic Affairs Printed by employee consumer cooperative A7 B7 V. Description of the invention (35), Mo, W, Mn, Re, Fe, co, Ni, Ru, Rh, Pd, Ir, pt, Cu, Ag, An, Zn, Cd, A1, Ga, In, Si, Ge, Te, Pb, Po, Sn, and Bi. Among them, Cr, Ni, Pt, Cu, Ag, An, A1 and stainless steel are preferably used. The substances may be used singly or in combination of two or more kinds. Alternatively, the substance may be used as an alloy. Particularly preferred is silver or an alloy thereof. The light reflecting layer 208 may be formed on the recording layer, for example, by vapor-depositing, sputtering, or ion plating the aforementioned light-reflecting substance. The thickness of the reflective layer is usually in the range of 10 to 800 nm, preferably 20 to 5000 nm and more preferably 50 to 300 μm. The substrate 202 on which the reflective layer 208 is formed is transferred by the eighth transfer mechanism 90 to the subsequent edge washing mechanism 92. As shown in FIG. 16A, the edge portion 206 of the first main surface of the substrate 200 is washed to remove the dye recording layer 204 formed on the edge portion 206. Subsequently, the substrate 200 is transferred by the ninth transfer mechanism 102 to the subsequent electrostatic blowing mechanism 94 to remove static electricity. Subsequently, the substrate 202 is also transferred to the ultraviolet-curable liquid application mechanism 96 by the ninth transfer mechanism 102. The UV-curable liquid droplet is dropped on the first main surface portion of the substrate 202. Subsequently, the substrate 202 is also transferred to the subsequent centrifuge mechanism 98 by the ninth transfer mechanism 102. The substrate 202 rotates at a high speed. In this way, the thickness of the application film of the ultraviolet curable liquid dropped on the substrate 202 is uniform on the entire surface of the substrate 202. In this specific embodiment, the management of the time schedule is that the reflective layer 208 is formed to be thick, and the time before the external light curing solution is applied is not less than 2 seconds and less than 5 minutes. --------------------- Order --------- line (Please read the precautions on the back before filling this page)

38 504684 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _____B7___ V. Description of the Invention (36) Subsequently, the substrate 202 is also transferred to the subsequent ultraviolet irradiation mechanism 100 by the ninth transfer mechanism 102. The ultraviolet light irradiates the ultraviolet light onto the substrate 202 to cure the solution. In this way, as shown in FIG. 16B, the protective layer 210 composed of the ultraviolet-curable resin is formed ', so that the light reflecting layer 208 and the dye recording layer 204 formed on the first main surface of the substrate 202 are covered with the protective layer. In this way, the optical disc D is constructed. The protective layer 210 is provided on the light-reflecting layer 208, and the rhenium dye recording layer 204 and the like can be protected physically and chemically. The protective layer 210 is also provided on the side of the substrate without the dye recording layer 204 provided to improve scratch resistance and water resistance. Materials that can be used as the protective layer 21 0 include, for example, inorganic substances such as SiO, Si02, MgF2, Sn02 'and Si "; and organic substances such as thermoplastic resins, thermosetting resins, and ultraviolet-curable resins. The protective layer 210 may be formed by laminating a thin film obtained by laminating an extruded plastic on the light-reflecting layer 208 and / or the substrate 202 by means of an adhesive, for example. Alternatively, the 'protective layer 210 may be provided by another method, such as, for example, hafnium plating and application. When a thermoplastic resin or a thermosetting resin is used, the protective layer 2 can also be formed by applying an application solution by dissolving the resin in an appropriate solvent, and then applying the application solution followed by drying. In the case of a UV-curable resin, the protective layer 21 can be prepared by using a resin or dissolving the resin in an appropriate solvent, and then applying the application liquid and then irradiating the UV-curable resin. Depending on the purpose of use, various additives such as antistatic agents, antioxidants and ultraviolet light absorbers can be added to the application liquid. The layer thickness of the protective layer 210 is usually in the range of 0.001 to 100 microns. Subsequently, the optical disc D is transferred by the tenth transfer mechanism 104 to the subsequent defect inspection. The paper dimensions apply the Chinese National Standard (CNS) A4 specification (210 X 297 Public Love) — III —-- I --- I 1-— — — III — — —-- 1 II (Please read the notes on the back before filling out this page) 39 Employees' Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Print 504684 A7 _____B7 ___ V. Description of the invention (37) The inspection mechanism 106 and the characteristic inspection mechanism 108 inspect the surface of the dye recording layer 204 and the surface of the protective layer 210 and the groove 200 formed on the substrate 202 of the optical disc B based on signal characteristics Whether there are flaws. These inspections are achieved by using light on both sides of the disc D, for example, a CCD camera performs reflective image processing. The inspection results obtained by the defect inspection agency 106 and the characteristic inspection agency 108 are sent to the subsequent classification agency 114.

• The disc D that has completed the description of the defect inspection process and the characteristic inspection process is classified by the classification mechanism 114 and transferred to the normal product stacking column 110 ′ or the defective product stacking column 112 based on the inspection results. At a predetermined number of stages of the stacking column 110 in a normal number of optical discs D, the stacking column 110 is taken out by the post-processing device 16 and a label printing step is introduced (not illustrated in the text). As described, in the manufacturing system 10 according to a specific embodiment of the present invention, when the dye liquid forming the dye recording layer 204 is applied to the base material 202 while the base material 202 is rotated, the time point t at which the dye liquid application is started is started. The time τδ elapsed from the time point t1 when the valve is fully opened is not less than 0 seconds and not more than 1 second, so the valve opening speed of the valve device 408 for discharging the dye liquid is slow. Therefore, the dye liquid is prevented from being suddenly discharged from the nozzle 406 at the application start time point to. The time when the dye liquid falls on the substrate 202 can prevent the dye liquid from being scattered in all directions. As a result, any defective appearance can be prevented, and the optical disc yield can be improved. In particular, in a specific embodiment of the present invention, the starting point Ps (> Figs. 4 and 20) of the application of the dye solution is located at a position of not less than 5 mm from the inner periphery of the substrate 202 without applying p0, that is, the distance from the formation For the dye recording layer 204, the peripheral end P0 in this region is deflected not less than 5 mm toward the outer peripheral side L ------------! 1! Til ------ (Please read first (Notes on the back then fill out this page)

40 504684 Printed clothing A7 B7 of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (38) 'When the application start position Ps is sufficiently separated from the non-application part P0 inside the substrate 202, even if the solution splashes Problems will occur for the following reasons. In other words, the droplets scattered during the subsequent application treatment flowed away. Immediately after the application is started, the discharge amount of the dye solution temporarily changes with the passage of time, and is therefore unstable. Therefore, it is preferable to start the application at a position slightly spaced from the inner circumference for the following reasons. In other words, if the application starts from the inner circumference, it causes non-uniform application, and it is possible that the end of the inner circumference of the dye recording layer 204 cannot form a perfect circle. In a specific embodiment of the present invention, the nozzle 406 is moved toward the inner peripheral side from the time point P0 at which the application of the dye liquid is started. Therefore, as shown in FIG. 21, the inner periphery of the dye recording layer 204 forms a perfect circle. If the application starts on the outer side of the substrate 202, when the dye liquid is adjacent to the outer peripheral end P1 of the substrate 202, the dye liquid is scattered in all directions. As a result, for example, there is a problem that the vicinity of the application portion is stained, and the solution adheres to the back surface of the substrate 202. Therefore, as in the specific example of the present invention, the application start position ps is a preferred position > On the substrate 202, it is more preferably located at a position deflected from the outer peripheral end P1 of the substrate 202 toward the inner circumference by not less than 5 mm. Further, the application start position ps is a position deflected from the non-application position P0 on the inner peripheral side of the substrate 202 toward the outer circumference by not less than 5 mm, preferably not less than 10 mm, and more preferably not less than 15 mm. On the other hand, in a specific embodiment of the present invention, the pressure applied to the dye solution is, that is, the pressure of the pressure tank 452 is not higher than 1 kgf / cm2. Normally, when the dye liquid is applied to the substrate 202, the dye liquid splashes in all directions when the dye liquid suddenly starts to be discharged. Conversely, when the pressure applied to the dye solution is in accordance with the Chinese National Standard (CNS) A4 specification (210 x 297 mm) II ------------. IIIIIII Order · --- ---- (Please read the notes on the back before filling out this page) 41 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

--------------- (Please read the precautions on the back before filling this page) A7 ^ ~ ----- B7_ 5. Explanation of the invention (39) hours, Spatters are scattered to the greatest extent so that no defects in appearance can occur. However, if the pressure is too low, the release amount per unit time is reduced, and the application rate is slow. Therefore, it takes a long time to apply a prescribed amount of the dye liquid. As a result, problems such as a decrease in output and a decrease in production efficiency may occur. Therefore, a preferable range of the pressure applied to the dye liquid is described later. In other words, the upper limit is not more than 1 kgf / cm2, preferably not more than 0.8 kgf / cm2, and most preferably not more than 0.6 kgf / cm2. The lower limit is not less than 0.02 kgf / cm2, preferably not less than 0.05 kgf / cm2, and most preferably not less than 0.1 kgf / cm2. According to a specific embodiment of the present invention, the manufacturing method of the optical disc D using the manufacturing system 10 is such that when the dye solution is applied to the inner peripheral side of the substrate 202 during the application treatment of the dye solution, the substrate at the application start time point The number of revolutions increased by 200. Considering this, in the first method case shown in FIG. 17, when the nozzle 406 is moved from the inner circumference of the substrate 202 toward the outer circumference, the number of revolutions of the substrate 202 increases. Therefore, the film thickness of the dye solution to which the substrate 202 is applied is substantially uniform over the entire surface of the substrate 202. In this way, the degree of dispersion of the push-pull signals in the radial direction can be reduced. Furthermore, the signal strength of the push-pull signal is allowed to be within the specified range. The result is a face-quality disc D. In the second method example shown in FIG. 18, when the nozzle 406 is moved toward the inner circumference of the substrate 202, the number of revolutions of the substrate 202 increases. Therefore, as shown in FIG. 21, a good shape (substantially perfect circle) of the application portion 80 can be obtained on the inner circumference even if the application amount of the dye solution is reduced. Further, it can be applied on the entire surface of the substrate 202. The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm).

42 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 504684 A7 B7 V. Description of Invention (4)

A uniform dye recording layer 204 is formed thereon. In this way, a high-quality optical disc D can be manufactured. According to a specific embodiment of the present invention, the optical disc D can be produced using the manufacturing system 600 shown in FIG. 22 in addition to the manufacturing system shown in FIG. The manufacturing system 600 shown in FIG. 22 includes two molding equipment (first and second molding equipment 602A, 602B) for using, for example, casting, compression molding, or injection molding to produce the substrate 202; and application equipment (First and second application equipment 604A, 604B) A dye recording layer 204 is formed on the substrate 202 by applying a dye application liquid on the first main surface of the substrate 202 and then dried; an inspection device 606 is used to inspect A box application device 604A '604B forms a dye recording layer 204' and a post-processing device 608 for forming a reflective layer on the dye recording layer 204 of the substrate 202 using, for example, a low-quality recording, and then applying a UV-curable> valley The liquid on the reflective layer is exposed to ultraviolet light to form a protective layer on the reflective layer. The first and second molding equipment 602A and 602B each include a molding machine 610 for casting, compression molding, or injection molding of a resin material such as polycarbonate to produce a substrate 202 on a first main surface thereof to form a track. Grooves or irregularities (notches 200) to indicate 'for example an address signal; and a cooling conveyor 612 to cool the substrate 202 while being transferred out of the substrate 202 from the molding machine 610. The stacking column 614 for stacking and storing the substrate 202 after the cooling process is installed at the terminal of the cooling conveyor 612. The first and first application equipment 604A, 604B each include three spin-coating devices 616 for dyeing and washing edges, and a multi-joint robot 618 for first and second molding equipment 602A, 602B. Pick one by one and stack it on this paper scale Gu Jiaguan (CNUA4 specification (21〇X 297 public love) — — — — — IIIIIII — — — — — — I — ^ '— — III — — — (Please read first Note on the back, please fill in this page again) 43 504684 Printed by A7 ___ B7_, Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (41) The substrate 202 of the stacking column 614 and the substrate 202 is transferred to the spin coating device 616 The inspection equipment 606 includes a first transfer conveyor 620 for transferring the substrate 202 to the next step to be processed in the first application equipment 604A; a second transfer conveyor 622 for transferring to the second application equipment 604B to complete the processing The substrate 202 to the next step; a numbering mechanism 624 for stamping a batch number equal to the substrate 202 transferred by the first and second transfer conveyors 620, 622; a first transfer mechanism 626 for transferring the completed Base material stamped with lot number 2 02 to the next step; and an inspection mechanism 628 for inspecting the dye recording layer 204 of the substrate 202 transferred by the first transfer mechanism 626 for defects and film thickness. The post-processing equipment 608 includes a substrate input mechanism 630 for Accepts the substrate 202 that has completed the inspection process by the inspection mechanism 628; the sputtering mechanism 632 is used to form a reflective layer on the first main surface of the substrate 202 input by the substrate input mechanism 630 by sputtering; a second The transfer mechanism 634 is used to sequentially transfer the substrate 202 that has completed the reflective layer sputtering to the next step; the two application centrifuge mechanisms (the first and second application centrifuge mechanisms 636A, 636B) are used to apply the UV-curable solution to the first The second transfer mechanism 634 transfers the substrate 202 and then rotates the substrate 202 at a high speed to obtain a uniform UV-curable solution application film on the substrate 202; a third transfer mechanism 638 is used to transfer the Any one of the second application centrifugation mechanism 636A, 636B completes the processing of the substrate 202 to the next step; an ultraviolet light irradiation mechanism 640 is used to irradiate ultraviolet light on the substrate transferred by the third transfer mechanism 638 202, so the UV curing solution can be cured to form a protective layer on the first main surface of the substrate 202; a fourth transfer mechanism 642 is used to transfer the substrate 202 exposed to ultraviolet light to the standard of this paper (Chinese national standards ( CNS) A4 specification (210x 297 mm) > -44------ II --- IMW '--- 丨 i Order --------- line · (Please read the note on the back first Please fill in this page again for matters) 504684 A7 B7 Printed clothing for employees' cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (42 times one step; a defect inspection agency 644 for inspecting the substrate 202 transferred by the fourth transfer agency 642 Defects on the application surface and the surface of the protective layer; and a classification mechanism 650 for classifying the substrate 202 into stack columns 646 stacked on normal products and stacks stacked on defective products according to the inspection results obtained by the defect inspection mechanism 644 Column 648. In the case of the manufacturing system 600, when the dye solution is applied to the inner peripheral side of the substrate 202 in the application process of applying the dye solution to the substrate 202, the first treatment shown in FIG. 17 is performed. As such, the application film thickness of the dye solution applied to the substrate 202 is substantially uniform over the entire surface of the substrate 202. Can reduce the distribution of push-pull signals in the radial direction. In this way, a high-quality disc D can be realized. The second method shown in Fig. 18 can also be performed when the dye liquid is applied to the substrate 202. Thus, even if the amount of the dye solution is reduced, the shape of the innermost application part 800 is excellent (substantially perfectly circular). In addition, a uniform dye recording layer 204 can be formed on the entire surface of the substrate 202. In this way, a high-quality disc D can be produced. In the aforementioned manufacturing systems 10 and 600, the substrate 202 is continuously transported after the thin film of the reflective layer 208 is formed, and the UV-curable solution forming the protective layer is dropped on the reflective layer 208. In addition, the thin film having the reflective layer formed on the substrate 202 can be collected at one time, and then the ultraviolet-curable solution can be dropped on the substrate 202, for example, using a sheet feeding procedure. In this procedure, the substrate 202 with the formed reflective layer 208 film can be stacked on a stacking column, for example, transferred to a subsequent UV-curable solution application step. However, it is preferable to use a pipeline, wherein the step of forming the reflective layer 208 is continuous to the step of applying the ultraviolet-curable solution. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) --------------------- ^ -------- ( Please read the notes on the back before filling out this page) 45 A7 _______— B7 __ V. Description of Invention (43) Next, explain three examples of experiments (referred to as "first to third experimental examples"). First, the first experimental example relates to a sample (Examples 丨 to 4 and Comparative Examples 丨 to 3) when the optical disc D was produced using the manufacturing system 10 shown in (ii). This example is for the time from the splash probability to the time when the application speed is stable. The application ratio when the first speed controller 462 is turned on is determined and changed. Many ..., Figure 20. The probability of splashing is based on the distribution of droplets sticking to the transparent part 474 on the inner peripheral side of the substrate (the droplets are intended to stick). When there is no droplet adhesion, the chance of loose money is 0%. As shown in Fig. 5, the time to application rate stabilization time represents the time τδ from the time when the application of the dye solution is started to the time point when the application of the dye solution is stabilized (the valve fully open time point) t1. The application ratio indicates that the inspection dye recording layer 204 is determined from the film thickness to the application state of the dye liquid on the substrate 202. When the application is completely normal, the application ratio is 100%. The dye recording layer 204 is formed as follows. That is, 2.65 g of the cyanine dye compound represented by the following general formula (1) is combined and mixed. 0 265 g of the anti-fading agent represented by the following general formula (2) is dissolved in 100 cc as shown in the following formula (3). 2,3,3-tetrafluoro-1-propanol was used to prepare a dye solution for forming a recording layer. ^ I -------- ^ --------- (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is applicable to China Standard (CNS) A4 specification (210 X 297 mm) 46 504684 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ___ Β7 V. Description of the invention (44)

F F Η I I I

H—G—C—C—OH IIIFFH Then 'prepared a polycarbonate substrate (diameter: 120 mm, thickness 12 mm) with threaded grooves (track pitch: 1.6 microns, groove width: 〇 4 micron, groove depth: 0.16 micron) is formed on the surface by casting. The dye solution was applied to the grooved side surface of the polycarbonate substrate by spin coating while changing the number of revolutions from 270 to 2000 revolutions per minute to form a dye recording layer 204 (the groove thickness was about 200 μm). The application of the dye solution is performed according to the steps shown in FIG. The pressure of the pressure tank was 0.3 kgf / cm2. The results of the inspection are shown in Figure 23. According to the experimental results, it is understood that the probability of splashing is 0%. In Examples 1 to 4 and Comparative Examples, where the time to settling time is longer than 0.1 seconds, the appearance of flaws appears. However, for Comparative Example 1, the opening degree of the first speed controller 462 is 2%, which is less than 5%. Therefore, an unapplied portion appears due to a decrease in the amount of the dye solution released. The application ratio was 20%. Therefore, according to the experimental results, it is understood that the opening of the first speed controller 462 is based on the Chinese national standard (CNS) A4 specification (210 x 297 mm) I --- I ---- ill — — — — ^ * — — — 11 —-- Line (Please read the notes on the back before filling out this page) 47 A7

504684 V. Description of the invention (45) The degree is preferably in the range of not less than 5% but not more than 50%, more preferably not less than 20% and not more than 50%. Next, the second experimental example is related to Examples 5 to 7 and Comparative Examples 4 and 5, and the optical disc D is produced using the manufacturing system 10 shown in FIG. 1. This experimental example is directed to the air during the application of the dye solution to the substrate 202. When the speed is changed relative to the application area, the push-pull signal degree and light reflection ratio at the predetermined position of the disc D when the application pattern is changed. The light reflectance (%) indicates the light reflectance when the groove is not formed, that is, in a state of no recording. The light reflection ratio of the actual disc D during the prescribed reproduction is not less than 65%. Therefore, it is sufficient that the light reflectance of the unrecorded state is not less than 67%. The push-pull signal is determined as follows. For Examples 5 to 7 and Comparative Examples 4 and 5, the laser beam was irradiated on the completed disc D to observe the amplitude of the push-pull signal when the track was deflected at three points (radius 23 mm, 45 mm, and 58 mm). (Signal strength). The amplitude unit is any unit. If the signal strength of the push-pull signal is lower than 0.09, the track deflection tends to occur. Conversely, if the signal strength of the push-pull signal is not less than 014, it means that the light reflection ratio is too low. The air velocity was 0.1 m / s in Example 5, 0.2 m / s in Example 6, and 0.4 m / s in Example 7; 0.6 m / s in Comparative Example 4; and 01 m / s in Comparative Example 5. The dye solution is applied according to the following application method. In other words, the application system was carried out according to the first method shown in Examples 5 to 7 and Comparative Example 4 according to Fig. 17 (referred to as "pattern A"). Example 5 is a case of 270 revolutions per minute of the substrate in the step S3 shown in FIG. 17. In other words, the substrate revolution of the paper is not changed at the 202 revolutions of the substrate. CNS A4 x 297 — I ---------------- (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 48 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Consumer Cooperatives

A7 "-* --------- V. Use for invention description (46) (referred to as "style B"). The obtained experimental results are shown in FIG. 24. According to the experimental results, in Examples 5 to 7, the application pattern is pattern A, the air velocity is not higher than 0.4 m / s, and the signal strength of the push-pull signal at three points is 0.99. In the range of 012, the signal intensity is approximately constant at all three points. Further, the light reflectance in the non-recorded state is not less than 68%. In other respects, the light reflectance is sufficient in Comparative Example 4 '. However, the light intensity of the push-pull signal at two points is not higher than 0.09. Understand that there is a problem with the track server. In Comparative Example 5, the signal intensity of the push-pull signal at a radius of 23 mm was 0.15 ', indicating that the light reflectance was insufficient. The measured value of light reflectance did not meet the specified 67%. As mentioned above, it should be understood that good results can be obtained in the comparison of the light reflection ratio and the signal strength of the push-pull signal in Examples 5 to 7 and Comparative Examples 4 and 5. Secondly, the third experimental example is related to Example 11 and Comparative Examples 1 丨 to 丨 6. Here, the optical disc D (radius · 60 mm) is manufactured using the manufacturing system 10 shown in Fig. 1 to observe when compared with Fig. 18 Features obtained when application style of application surface shown is changed. The experimental results obtained are shown in Figure 25. In Example 11, first, the substrate 202 was rotated at 200 revolutions per minute, and at the same time, the application of the dye solution was started when the arm 410 (refer to FIG. 3) of the solution supply device 400 reached a position 55 mm from the center of the substrate 202 (refer to FIG. 18 (step S101). Subsequently, the arm 410 moves toward the inner peripheral side (refer to step S102) of the substrate 202 at a speed of 30 mm per second while applying the dye solution. In this process, the pressure of applying the dye solution using the nozzle 406 is not higher than 0.5 atmosphere, and the flow rate of applying the dye solution using the nozzle is 0.2 cc per second. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

— — — III — — — — — — · I I (Please read the notes on the back before filling out this page) --Line · 49 > 04684

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs At the stage when the nozzle reaches 30 mm from the center of the substrate 202, the number of revolutions of the substrate 202 is still 400 revolutions per minute (see step Si03). At the stage when the nozzle 4 06 reaches the innermost 20 mm position from the center (the innermost circumference) of the substrate 202, the arm 410 stops for 0.2 seconds (see step s04). Subsequently, the arm 410 moves toward the outer peripheral side of the substrate 202 at a speed of 60 mm per second (see step S105). When the nozzle 406 reaches a position 30 mm from the center of the substrate 202, the application of the dye solution is stopped (see step sl106). The arm 41o is rotated in the horizontal direction to return the nozzle 406 to its original position (initial state). Subsequently, the number of revolutions of the substrate 202 was increased to 630 revolutions per minute in 6 seconds (see step S107), and the number of revolutions of the substrate 202 was increased to 1400 revolutions per minute in 6.3 seconds (see step Si0). . Subsequently, the substrate was rotated at 202 revolutions! 7 seconds to 2200 rpm. Subsequently, the number of revolutions of the substrate 202 (= 2200 rpm) is maintained for 5 seconds (see step S109). Subsequently, the rotation of the substrate 202 is stopped to complete the process of applying the dye liquid to the substrate 202. This series of application patterns is defined as pattern C. In other respects, Comparative Example 1 was performed in the same manner as in Example 11 except that the application of the dye solution was started at step S101 at a position 40 mm from the center of the substrate 202. This type of application pattern is called pattern D. Comparative Example 12 was performed in the same manner as in Example 11 except that the number of revolutions at which the application of the dye liquid was started was 350 revolutions per minute. This application pattern is called pattern E. Comparative Example 13 was performed in the same manner as in Example 11, except that the arm 410 moved toward the inner peripheral side of the substrate 202 at a speed of 60 mm per second while applying the dye solution. This type of application pattern is called pattern F. Comparative Example 14 was performed in the same manner as in Example 11, but even if the nozzle 406 reached the center of the substrate 2002, the paper size was subject to the Chinese National Standard (CNS) A4 specification (2) 0 X 297 mm. ----- --1 --------- (Please read the notes on the back before filling this page) -50 hi " ----___ B7_____ V. Description of the invention (48) 30 mm position stage, basic The material 202 is still 200 revolutions per minute. This type of application pattern is called pattern G. (Please read the note on the back? Matters before filling out this page.) Comparative Example 15 was performed in the same manner as in Example 11, but the arm 410 did not stop even when the nozzle 4 06 reached the innermost circumferential stage. This application style is marked as Style Η. Comparative Example 16 was performed in the same manner as in Example 11, except that the application flow rate of the dye solution was 1 cc per second. This application pattern is marked as pattern i. The experimental results show that in Example 11, the jitter at a point of 25 gross meters from the center of the substrate 202 is 31 μs, and the film thickness of the dye recording layer 204 rarely fluctuates, that is, the dye. The liquid was uniformly applied to the entire surface of the substrate 202. In Comparative Example 11, the unapplied portion appeared on the outer peripheral portion. In Comparative Examples 12 and 13 ', when the dye solution was applied to the outer periphery of the substrate 202, the dye solution rolled and dropped like a ball and an unapplied portion appeared. In Comparative Examples 14 and 15, as shown in Fig. 26, the shape of the innermost application portion 800 was disturbed and a perfect circle could not be formed. In particular, the film thickness on the circle ► fluctuates from a point of 25 mm from the center of the substrate 202 (especially in Figure 26, it is hatched by the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the Consumer Cooperatives Instruction Area 802). Jitter is increased to 41 亳 microseconds. In Comparative Example 16, the application rate was increased in the south, which caused a problem of high cost. As mentioned above, in Example 11, the dye solution can be uniformly applied to the entire surface of the substrate 202, which contributes to the reduction of jitter. Of course, the method for manufacturing the optical information recording medium and the optical information recording medium according to the present invention are not limited to the foregoing specific embodiments, but may deviate from the gist or main features of the present invention in other various forms to express the paper standard outline. (CNS) A4 size (210x 297 male f) 51 504684 A7 B7 Printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (51) 500… buffer box 502… exhaust blower 504… butterfly valve 506… shutter 508 ... Exhaust volume control valve mechanism 510 ... Exhaust volume sensor 520 ... Overlapping coordinate exhaust line 522 ... Outdoor blower 524 ... Exhaust pipe 526-30 ... Butterfly valve 600 ... Manufacturing system 602A-B ... Molding equipment 604A-B ... Application equipment 606 ... Inspection equipment 608 ... Post-processing equipment 610 ... Molding machine 612 ... Cooling conveyor 614 ... Stacking column 616 ... Spin coating device 618 ... Multi-joint robot 620-2 ... · Transfer conveyor 624 ... Numbering mechanism 626 ... Transfer mechanism 628 ... Inspection mechanism 630 ... Substrate input mechanism 632 ... Sputtering mechanism 634 ... Transfer mechanism 636A-B ... Application centrifuge mechanism 638 ... Transfer mechanism 640 ... UV Light irradiation mechanism 642 ... Transfer mechanism 644 ... Symptom inspection mechanism 646-8 ... Stacking column 650 ... Classification mechanism 700-2 System 704 ... Air conditioner 710 ... Air inlet 712 ... Front Filter 800 ... Application section 802 ... Shaded area l ---------------------- Order --------- line ( Please read the notes on the back before filling in this page) This paper size is applicable to China National Standard (CNS) A4 (2) 0 X 297 mm) 54

Claims (1)

504684 A8B8'C8]) 8 Patent Application No. 089100050 Patent Application Amendment Scope Amendment Date · November 1990 1 · A method for manufacturing a thermal mold type optical information recording medium (D), the medium and-substrate ( 202) has a-recording layer (204) which can record information by irradiating a laser beam. The method includes the following steps: applying a solution forming the recording layer (204) on the substrate (202) while rotating the substrate (202), wherein: a period of time from a point in time when the solution application is started to a point in time when the solution application rate is constant is not less than 0.01 second and not more than 1 second. 2. A method for manufacturing a thermal mold type optical information recording medium as stated in item 1 of the patent scope, wherein a valve device (408) is used to execute and stop the solution of the substrate (202) according to the opening and closing of the valve. Bleed; and the wide opening speed is not less than 5% and not more than 50% relative to the maximum speed. '3. The method for manufacturing a thermal mode type optical information recording medium as described in the second item of the patent application scope, wherein: the valve is opened and closed by fluid pressure; a speed controller (462) is used to control the supply valve device (408). Fluid flow rate; and the speed controller (462) determines the opening degree of the fluid flow rate to be not less than 5% and not more than 50%. 4. The method for manufacturing a thermal mode type optical information recording medium as described in the first item of the patent application, wherein the solution is an organic solvent containing a dye. 55 j I 1 The size of this paper is suitable _ 家 _ (_ A4_ D8 VI. Patent Application Scope • 5. · The method of manufacturing a thermal mold type optical information record * media such as the scope of patent application No.1, where the application location ( Ps) is located on the substrate (202). 6. The method of manufacturing a thermal mold type optical information recording medium according to item 5 of the patent application 'wherein the application start position (Ps) is located on the substrate (202) The non-application part of the inner peripheral side is not less than 5 mm. 7. The method of manufacturing a thermal mold type optical information recording medium as described in the scope of the patent application, wherein the pressure applied to the solution is not more than 1 kgf / square Cm. 8. The method for manufacturing a thermal mold type optical information recording medium according to item 丨 of the patent application, wherein the nozzle (406) for applying the solution to the substrate (202) is the most toward the substrate (202). The inner circumference moves, and the rotation speed of the substrate (202) increases. 9. For example, the method of manufacturing a thermal mold type optical information recording medium according to item 8 of the patent application scope, wherein the application of the solution belongs to the substrate (202). The outer circumference. The method of manufacturing a thermal mold type optical information recording medium according to item 9 of the patent application 'wherein the application of the solution starts from the outward direction portion 3/4 radius from the center of the substrate (202). For example, a method for manufacturing a thermal mold type optical information recording medium according to claim 9 of the patent scope, wherein when the solution is applied to the periphery of the substrate (202), the number of revolutions of the substrate (202) is higher than 3 per minute. 〇rpm. 12. As stated in the patent claim No. 8 manufacturing method of a thermal mold type optical information recording medium 'its towel solution uses a nozzle (406) at a level not higher than 1.0. Everyone's standard-77-504684 A8 B8 C8 D8 L, pressure application of air pressure in the scope of the patent application patent. .13. The method of manufacturing a thermal mold type optical information recording medium as described in the patent application No.8, wherein the solution is a nozzle (406) at Application at a flow rate higher than 0.5 cc per second. 14. The method of manufacturing a thermal mold type optical information recording medium according to item 8 of the patent application scope, wherein when the solution is applied to the inner circumference of the surface of the substrate (202), the substrate (202) The number of revolutions is not less than 300 revolutions per minute. 15 · A method for manufacturing a thermal mold type optical information recording medium according to item 8 of the patent application, wherein when the solution is applied to the innermost circumference of the substrate (202), the number of revolutions of the substrate (202) used is greater than when the solution is applied to The number of revolutions of the substrate (202) used at the outer circumference of the substrate (202) is large, not less than 50. 16. The method for manufacturing a thermal mode type optical information recording medium, such as in the patent application No. 15, wherein When the nozzle (406) reaches a position where the separation distance from the innermost circumference of the substrate (202) is less than 20 mm, the rotation speed of the substrate (202) increases. _ 17. If the method of manufacturing a thermal mode type optical information recording medium according to item 8 of the scope of patent application, the air velocity of the air conditioner is set to not more than about 0.4 meters per second relative to the application surface of the substrate (202). 18 · —A thermal mode type optical information recording medium is included on a substrate (202). A recording layer (204) can record information by using laser beam irradiation, wherein: the recording layer (204) is The material (202) is rotated while applying the solution forming the recording layer (204) onto the substrate (202); and the recording layer (204) is formed by applying the solution in such a manner that when the solution is applied to the substrate (202) The number of revolutions of the substrate (202) increases at the peripheral side. 57 (Please read the precautions on the back before filling in this page): Line 丨 This paper size applies to China National Standard (CNS) Α4 specification (210X297 mm)